Petrich, Mario <br/><br/>
Lectures in semigroups / 
Mario Petrich 
 - London :  John Wiley,  c1977 
 - viii, 168 p. :  ill. ;  25 cm. 
<br/><br/> "Most of the present material was the content of a course given to advanced graduate students at the Pennsylvania State University in 1972/73." 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0471995142 :  USD 17.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Semigroups<br/>Matrices<br/>Decomposition (Mathematics)
<br/><br/><label>Dewey Class. No.: </label>512.86